The Senate has transmitted to me a copy of the message sent by my predecessor to that body on the 21st day of February last, proposing to take its advice on the subject of a proposition made by the British Government through its minister here to refer the matter in controversy between that Government and the Government of the United States to the arbitrament of the King of Sweden and Norway, the King of the Netherlands, or the Republic of the Swiss Confederation. In that message my predecessor stated that he wished to submit to the Senate the precise questions following, namely: Will the Senate approve a treaty referring to either of the sovereign powers above named the dispute now existing between the Governments of the United States and Great Britain concerning the boundary line between Vancouvers Island and the American continent? In case the referee shall find himself unable to decide where the line is by the description of it in the treaty of 15th June, 1846, shall he be authorized to establish a line according to the treaty as nearly as possible? Which of the three powers named by Great Britain as an arbiter shall be chosen by the United States? I find no reason to disapprove of the course of my predecessor in this important matter, but, on the contrary, I not only shall receive the advice of the Senate therein cheerfully, but I respectfully ask the Senate for their advice on the three questions before recited. ABRAHAM LINCOLN. WASHINGTON, _March 26, 1861_. _To the Senate of the United States_: I have received a copy of a resolution of the Senate passed on the 25th instant, requesting me, if in my opinion not incompatible with the public interest, to communicate to the Senate the dispatches of Major Robert Anderson to the War Department during the time he has been in command of Fort Sumter. On examining the correspondence thus called for I have, with the highest respect for the Senate, come to the conclusion that at the present moment the publication of it would be inexpedient. ABRAHAM LINCOLN. PROCLAMATIONS. BY THE PRESIDENT OF THE UNITED STATES. A PROCLAMATION. Whereas the laws of the United States have been for some time past and now are opposed and the execution thereof obstructed in the States of South Carolina, Georgia, Alabama, Florida, Mississippi, Louisiana, and Texas by combinations too powerful to be suppressed by the ordinary course of judicial proceedings or by the powers vested in the marshals by law: Now, therefore, I, Abraham Lincoln, President of the United States, in virtue of the power in me vested by the Constitution and the laws, have thought fit to call forth, and hereby do call forth, the militia of the several States of the Union to the aggregate number of 75,000, in order to suppress said combinations and to cause the laws to be duly executed. The details for this object will be immediately communicated to the State authorities through the War Department.